Project
Sorry I couldn't see it that clearly in the photo, Canti's would like nice though, you could retro fit a CX one. On the Bar front Salsa now do a range of Flat bars that have varying degrees of sweep to emulate risers that you could put on a riser stem, same effect only looks more authentic.
The two piece XT cranks were the first of the style and not that great, but the new stuff by Truvativ are just so easy to fit, service and very very light, literally 1 minute to remove the chainset and two to fit a new BB. But no good for retro.
Can't beat a Ti hardtail really, despite all the modern Suss innovations, nothing climbs like one.